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Originally Posted by skypilotlt5
Should I or shouldn't I. Right now the car is making 363rwhp with B&B exhaust, Haibeck chip and some plenum and injector hsg work. I am considering a set of Stainless Works headers and Random Tech cats. I would appreciate any comments reguarding this instalation. Is there any welding or cutting required? Or any other mods needed before doing this.
Thanks and Seasons Greetings to all!!
Rob
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no question that the headers and random cats are the way to go. I would also consider a B&B with x pipe if you don't mind a serious rumble. the old B&Bs were too loud for me, but I love the way the LSV came out.
make sure you get the super high flow stainless steel cats, they cost a bit more (around 280 per) but are well worth it.
the zr-1 really benefits above 6k rpms with the headers and free flow exh even on a stocker.
fyi, the difference on the 390 stroker was 74 rwhp between the stock manifolds, and exh vs headers + b&b
on a stocker, the difference is much less, but still very significant. this is the "low hanging fruit" on the zr-1 and a must do before you consider much other mods to get the most out of the car.
the sound alone is intoxicating and worth the price of admission. your tire salesman will thank you also!!!